Method and system for optimizing fuel delivery to a fuel injected engine operating in power mode

  • US 8,996,279 B2
  • Filed: 08/18/2011
  • Issued: 03/31/2015
  • Est. Priority Date: 08/20/2010
  • Status: Active Grant
First Claim
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1. A method of optimizing fuel delivery to an internal combustion engine having a base engine control unit comprising the steps of:

  • (a) monitoring fuel injector controls signals output by said base engine control unit, said fuel injector control signals having a duration;

    (b) determining if the engine is operating in a designated condition;

    if said engine is operating in said designated condition;

    (c) modifying an amount of fuel delivered to said engine by either increasing or decreasing a duration of at least one of said fuel injector control signals output by said base engine control unit to a modified duration;

    (d) determining if a speed of said engine increased or decreased in response to said modification of said amount of fuel delivered to said engine; and

    (e) if said speed of said engine increased and said duration was increased, further increasing said modified duration and if said duration was decreased, further decreasing said modified duration;

    (f) if said speed of said engine decreased and said duration was increased, decreasing said modified duration, and if said duration was decreased, increasing said modified duration; and

    (g) repeating steps (d)-(f) one or more times.

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